GraphQL Formatter — Beautify Queries
Format and indent GraphQL queries and mutations for better readability.
How it works
- 1Paste or type your text in the input field
- 2Click "Process" — processing happens in your browser
- 3Copy the result or download as a text file
What to do next
About GraphQL Formatter
GraphQL Formatter performs graphql formatter as a focused single-page utility. Format and indent GraphQL queries and mutations for better readability. Defaults are tuned for the common case so the first run is one click, with every option that matters exposed for the moments you need to fine-tune the result.
Anyone who works with developer utility on a casual basis — site reliability engineers triaging logs, students learning new languages, data analysts wrangling JSON — finds GraphQL Formatter a quick way to get the result. The page loads in under a second, the controls are visible from a single screen, and the result downloads or copies in one click.
The execution path is auditable from the page itself: open developer tools, switch to the Network tab, run a job. The requests you see are static-asset GETs for the engine and the page resources. The actual work is JavaScript code running against the bytes already in your tab's memory.
Technically, the work is done by standard browser APIs, loaded as part of the page. Inputs are recognised automatically and validated before the engine begins processing. Files up to 0 MB are supported per run; that ceiling keeps browser memory usage stable on a wide range of devices.
The right moment to reach for GraphQL Formatter is when you have a focused developer utility job that fits inside a browser tab. Open the page, drop in the file or paste your input, choose the options that matter, and the tool returns the result.
Workflow tip: GraphQL Formatter pairs well with JSON Viewer / Formatter and SQL Formatter. Other adjacent tools you may find useful are JavaScript Formatter and YAML Formatter. Because every tool is a separate page, you can mix and match the steps that match your job. Bookmark the ones you reach for the most.
The output handed back by GraphQL Formatter is the output file. If you would prefer to keep the result in the browser instead of downloading it, you can copy it from the result panel and paste it directly into another tab — useful when the next tool in your workflow expects pasted text rather than a file.
The architecture imposes only the limits the browser itself imposes. The published 0 MB ceiling is conservative; most modern devices comfortably handle inputs up to that size, and the cap exists so the tool degrades gracefully on phones and budget laptops rather than running out of memory.
Some notes on the design of GraphQL Formatter. The page is intentionally narrow: one input, the controls relevant to the task, and one output. Adding unrelated features would make the common case slower for the majority of users, so the surface is held to what people actually use.
Some context on why GraphQL Formatter exists in this form: modern File APIs, high-performance JavaScript engines, and well-maintained open-source libraries now make it possible to perform developer utility work entirely in the browser. GraphQL Formatter is built on top of that capability, which is why a single page can host the full pipeline.
A few practical tips that experienced users of GraphQL Formatter pick up over time. First, keep your default browser updated — the engine relies on standard web APIs and newer browser versions are noticeably faster than ones from a few years ago. Second, close other heavy tabs before processing a large input; the engine shares CPU and memory with whatever else is open. Third, if you re-run the same kind of job often, your last-used settings are remembered for the rest of the tab session, so subsequent runs are essentially one click.
If the result is not what you expected, the most common causes are easy to check. Confirm the input is under the 0 MB ceiling — files just above the cap fail silently because the engine refuses to allocate the buffer. Confirm the input is one of the supported formats. And if the page itself feels slow, try closing other heavy tabs to free up memory; the engine runs in your browser, so it competes for the same resources as everything else open.
If you also use a command-line tool for graphql formatter, GraphQL Formatter is a convenient alternative for the times you are on a different machine or helping someone who is not comfortable in a terminal. The output is a standard file in the format documented above.
GraphQL Formatter is intentionally narrow in scope so the common case is fast and the result is predictable. If you ever need a variation it does not cover, browse the rest of the catalog — there is a good chance an adjacent tool already exists, and switching between tools is just a matter of opening another tab.
How it works
- 1Open the GraphQL Formatter workspace above. The interface is a single page, so there is nothing to navigate.
- 2Drop a developer file onto the upload area, or click to pick one from your device.
- 3Adjust the options to match what you need. Sensible defaults cover the most common case, so you can usually skip this step.
- 4Hit the run button. standard browser APIs does the work in your browser tab.
- 5Grab the output as soon as the run completes. You can also copy the result instead of downloading if the next tool in your workflow accepts pasted input.
- 6Repeat the process for additional inputs whenever you need to. The page stays loaded, so subsequent runs are quick.
Common use cases
- Convert between data formats while wiring up an integration using GraphQL Formatter.
- Hash a string for a quick reproducibility check.
- Inspect a payload during local development without writing a script.
- Compare two API responses to spot a regression.
- Decode a token to confirm its claims during a debugging session.
- Encode binary content for transport in a JSON body.
- Generate boilerplate from a single specification line.
- Pretty-print a minified blob during incident triage.
FAQ
Does it support mutations and subscriptions?
Yes — any GraphQL operation type including queries, mutations, and subscriptions.
Are comments preserved?
Yes — GraphQL comments starting with # are preserved.
Does it handle fragments?
Fragment definitions and spreads (...FragmentName) are formatted correctly.
What about variables and directives?
Variable definitions and directives like @skip are preserved in the formatted output.
Does it validate the schema?
No — it formats the text structure only. Use a GraphQL validator for schema checking.
Is data sent to a server?
No — processing happens in your browser.
Does GraphQL Formatter support batch processing?
GraphQL Formatter processes one input at a time by design — it keeps memory usage predictable on lower-end devices and makes results easier to verify. To handle a folder, run the tool once per file; the page stays loaded between runs and remembers your last-used settings, so the second run is essentially instant.
Does GraphQL Formatter work with screen readers?
GraphQL Formatter uses native HTML controls wherever possible, which means keyboard navigation, focus rings, and screen-reader labels work the way the platform expects. The drop zone accepts files via the keyboard-accessible file picker as well as drag-and-drop, and result downloads use standard browser download flows. If you spot an accessibility gap, Favtoo treats it as a bug worth fixing.
How accurate is GraphQL Formatter?
GraphQL Formatter is built on standard browser APIs, which is the same class of engine used by professional developer utility pipelines. For deterministic operations, the output is byte-identical to what an equivalent CLI run would produce; for operations involving a codec or a model, the result is well within the range of what comparable tools generate. If you have a specific reference output you need to match, run a small test job first to confirm the configuration produces what you expect.
Is the source for GraphQL Formatter available?
GraphQL Formatter is a static page running an open-source engine in your browser, so a typical corporate firewall does not get in the way as long as it allows JavaScript to load from Favtoo. For teams that need to host it themselves on an internal network, the underlying engine (standard browser APIs) is open-source and can be packaged into a private build with the same behaviour. Reach out via the Contact page if that is something you are exploring.
Does GraphQL Formatter work on a phone or tablet?
GraphQL Formatter runs in any modern mobile browser — Safari, Chrome, Firefox and the in-app browsers in most messaging apps all support the underlying APIs. Performance depends on the device: a recent phone handles typical inputs nearly as fast as a laptop, while older devices may take a few seconds longer near the 0 MB ceiling. The interface lays out cleanly on small screens, so you do not need to pinch-zoom to see the controls.
Does GraphQL Formatter ask for any browser permissions?
GraphQL Formatter only needs the standard web platform — file picker access for the inputs you choose to load, and optionally clipboard access if you copy the result rather than downloading it. There is no microphone, camera, geolocation or background-permission request, because none of those are needed for the work the tool does.
Why does GraphQL Formatter feel slow on large inputs?
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 0 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Are jobs run with GraphQL Formatter stored anywhere?
Favtoo keeps no copy of your file because Favtoo never receives your file. GraphQL Formatter runs entirely in your browser, the input is held only in your tab's memory, and closing the tab discards it. There is no opt-in cloud history, no "recent jobs" panel synced to an account, and no server-side retention to configure — the architecture simply has nowhere for your file to be stored.
Will I notice a difference in the output from GraphQL Formatter?
GraphQL Formatter is built to preserve quality wherever the underlying developer format allows it. Operations that are mathematically lossless (e.g. structural transformations, lossless re-encoding) round-trip with no perceptible change. Operations that involve a lossy codec inevitably introduce small artefacts at the byte level, but the defaults aim at the sweet spot where output looks or sounds the same to a normal viewer or listener while still being meaningfully smaller or faster than the input.